Method of burnishing and treating corncob pipe bowls



H. HIRSCHL AND A. V. WAGNER.

METHOD 0F BURNISHING AND TREATING CORNCGB PIPE BOWLS.

APPLICATION FILED ocT.2s.192o.

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H.. HIRSCHL AND A. V. WAGNER. METHOD 0F BUHNISHING AND TREATlNacoRNcos PIPE BoWLs.

APPLICATION FILED OCT. 25,1920.

Patented @et 53T, 319922.

NETE@ STATES tenne Parent canon.

HARRY HIRSCHL AND ALBER V. WAGNER, 0F WASHINGTON, MISSOURI; SAID WAGNER ASSIGNOR 0F HIS ENTIRE RIGHT 'IO HIRSCHL AND BENDIIJEIIi/I, OF WASHINGTGN, MISSOURI, A FIRM.

TIEIHOD 0F BURNISIIING AND TREATING CORNGOB PIPE BOWLS.

Application filed October 25, 1920. Serial No. 419,362.

To all whom t may concern:

Be it known that we, HARRY HIRSCHL and Amann V. WAGNER, citizens of the United States, residing at Washington, in the county of Franklin and State of Missouri, have invented certain new and useful Im provements in Methods of Burnishing and rlireating Corncob Pipe Bowls, of which the following is a specification.

Our invention relates to the method of burnishing and treating the bowls of corn cob tobacco smoking pipes. Uur new and novel method is designed to effect a much more efficient burnishing of the corn cob bowl than is possible with any other process or means of this character with which we are acquainted, and this efficient burnishing is effected very economically as will appear in the following detailed description.

The method heretofore employed in burnishing the bowls of corn cob pipes has been to place the bowls on a high speed lathe, and burn the same with friction, by pressing a piece of soft wood against the outside surface of the bowl, but this method has several disadvantages, principally that it is too slow, and it breaks too many bowls.

The annexed drawings and the following description set forth in detail certain steps and means for carrying out our invention, the disclosed means, however, constituting but oneI of the various mechanical forms by which the principle of the invention may be applied.

In said annexed drawings:

Figure l represents an elevation of our new and improved burnishing device, showing one form of means by which our improved method of burnishing may be carried out, the same being represented in connection with a pipe bowl in position to be burnished.

Figure 2 represents a diagrammatic plan of the burnishing device.

Figure 3 represents a full size side elevation of the pipe bowl and its end protectors detached from the burnishing de vice.

Figure 4f represents a side elevation of a turned corn cob pipe bowl in its natural condition.

Figure 5 represents a side elevation of the same form of bowl after it has been burnished.

Figure 6 represents the corn cob bowl after it has been further treated.

Figure 7 represents the same form of bog/l in its completed or finished condition, an

Figure 8 represents a complete corn cob pipe showing a slightly modified form of corn cob bowl.

Similar numerals of reference are employed to designate corresponding parts throughout the `several figures of the drawings.

Referring now to the means employed in connection with our method of burnishing the corn cob bowls, the ordinal l indicates a suitable frame table, stand or support, provided with a top member 2, `and an upright member 2 forming a bearing for the inner 'end portion of a horizontally arranged driving shaft 3, having fiXedly secured to said end portion a bevel drive gear wheel 4i, which meshes with a bevel gear wheel 5, the latter being fiXedly secured to an upright driving shaft 6 carried by said frame or support. Fixedly secured to the upper surface of the top member 2, is an annular member 7 adapted to receive and support a cylindrical sleeve 8 which is iixedly secured to the said driving shaft 6, and formed integral with said sleeve 8 is a series of radially extended arms 9 terminating at their outer end portions with a ring member 10 which is provided with a series of vertical openings therethrough equi-distant apart entirely around said ring, each opening being adapted to receive and retain an annular member ll provided with a cupshaped end portion l2 adapted to receive and protect one end portion of a corn cob bowl 13, said ring and its connections being adapted to be rotated by the driving shaft 6.

The upper end of said sleeve 8 carries a rotating annular member' le, provided with an annular outwardly and upwardly extending rim portion l5, to which is pivotally secured equi-distant apart around said rim portion a series of members 16,

adapted to receive and protect the other end portion of a corn cob bowl, each of said members having a long horizontally eX- tended arm 17, adapted to carry a cup- 'shaped member 18 which is fitted over the end portion of the cob bowl, and a short 'Vertical arm 19 extending at a right angle to the longer arm 17. Suitably supported above the frame or table 1 and slightly above the rim of the member 14, is a stationary rod with its front end portions 20 and 20 spaced apart and suitably secured to the frame, while its rear end terminates in a semi-circular portion 21, said rod being adapted to automatically contact with each short arm 19 and thus lift the long arm and its member 18 from contact with' the end of the corn cob bowl as the member 14 is rotated past Vthe end portion 20 of the rod, and retain said armpin such position until it passes the end portion 20 of said rod and into the space between the ends of the rod, when it will automatically drop in position so that the member 18 will protect one end of the pipe bowl. It will be seen that a series of pipe bowls may be burnished at the same time, or as many as are arranged in the space formed between the end portions of the rod 20, by a series of gas torches or burners 22, each of which is connected to a suitable gas supply pipe, said gas torches or burners being adapted to project a gas flame in contact with the entire outer side fuzzyl surface of the cob bowl which fuzzy-surfaces are a1- wa-ys present upon the turned surfaces of the bowl when in its natural condition, such as shown in Fig. 4, and said flame consumes and destroys all of the exterior fuzzy and loose substances, and then upon further application of the heated flame, the outer side surfaces of the bowl are burnt, charred, or carbonized, thereby burnishing the entire exterior outer side surfacesy of the bowl and leaving it with aA dark color, which is preferred to the natural color and in the condition substantially as shown in Fig. 5 with a series of cup-shaped recesses and darkened longitudinal and horizontal ridges formed around its exterior surface, when we further treat the cob bowl by filling the recesses, crevices and holes of the outer side surfaces with plaster of Paris, then this filling is sand-papered down as shown in Fig. 6 after which the bowl is varnished, the burnished, burnt, charred and darkened outside surfaces showing up between the plaster filling, thereby giving the bowls an improved dark finish witha pleasing and attractive appearance in their finished condition, such as shown in Fig. 7, while in Fig. 8 we show a complete pipe showing a slightly modified form of bowl in its finished condition provided with a stem.

It will be understood that it is deemed essential to cover and protect the upper and lower surfaces of the cob bowls to keep the path of the bowls from contact with the flame, and that any suitable projected flame may be utilized in connection with our burnishing method, although a projected gas flame is preferably employed, and when one or a series of single flames are used, the pipe bowl must be revolved by hand, or in any other suitable manner, so that the entire outer side surfaces of the bowl may be properly burnished,-=however a series of flames may be readily arranged to obviate the necessity of revolving the bowl, further, it will be readily obvious that our burnishing method can be successfully carried out by the use of a pair of prongs (not shown) each jaw of said prongs being provided with a cover or end protector for the bowl, similar to the end protectors 12 and 18 herein referred to, whereby the bowl is held between said protectors and subjected to the action of the gas flame, since 'prongs of this type have heretofore been employed for the purpose stated.

Having thus described our invention what we claim and desire to secure by Letters Patent is 1. AThe method of burnishing a corn cob pipe bowl when formed in its natural condition by subjecting the outer side surfaces of said bowl to a projected flame.

2. The method of burnishing a corn cob pipe bowl when formed in its lnatural condition, consisting in first covering the upper and lower surfaces of the bowl, then subjecting the outer side surfaces of said bowl to a projected gas fiame to remove the loose and fuzzy substances, and finally further applying said flame to the surfaces for furnishing a dark color to the exterior of the bowl.

3. The method of treating a corn cob pipe bowl when formed in its natural condition, by first subjecting its outer side surfaces to the action of a gas flame to burn'off the fuzzy substances adhering thereto, then further applying the flame to said surfaces to burnish the same and to remove the substances formed within the recesses in its outer side surface, then filling in said recesses with plaster of Paris, and finally smoothing said outer side surfaces by the use of sand paper.

4. The method of treating a corn cob pipe bowl when formed in its natural condition, by first covering and protecting both its upper and lower surfaces, then subjecting its outer side surfaces to the action of a gas flame to burnish said bowl and to remove the substances formed within the recesses in its outer side surface, then filling said recesses with pflaster of` Paris, and finally smoothing said outer surfaces by the use of sand paper. l Y

5. The method of treating a corn -cob pipe bowl when formed in its natural condition,

a series of recesses therein, then filling said recesses with plaster of Paris, then smooth ing said surfaces by the use of sand paper, 1,0 and finally varnishing the exterior surface of said bowl.

- HARRY HIRSCHL.

A. V. WAGNER. 

